Reflectance of dried leaves of willow (Salix
sp.) measured in the laboratory. This
collection of sagebrush leaves was measured after oven
drying them for 24 hours at 36 degrees Celsius.The green
leaves were stacked in a sample cup and the head of the
spectrometer fiber optic cable was passed over the leaves.

The vegetation was sampled in Yellowstone National Park
and kept in a plastic bag, on ice, for four days until
measured.